package com.itheima.demo;

public class IntegerDemo {
    public static void main(String[] args) {
        String s = "100";
        int i = Integer.parseInt(s);
        System.out.println(i);
        System.out.println(i+111);

        Integer integer = Integer.valueOf(s);
        System.out.println(integer);

        int i1 = integer.intValue();
        System.out.println(i1);
    }
}
